(Answered) Question a 02 m times 02 m street sign surface has an

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Question: A 0.2 m × 0.2 m street sign surface has an absorptivity of 0.6 and an emissivity of 0.7. Solar radiation is incident on the street sign at a rate of 200 W/m2, and the surrounding quiescent air is at 25°C. Determine the surface temperature of the street sign. Assume the film temperature is 30°C.

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